155400335415 has 24 divisors (see below), whose sum is σ = 290080627200. Its totient is φ = 76504780224.

The previous prime is 155400335393. The next prime is 155400335471. The reversal of 155400335415 is 514533004551.

It is not a de Polignac number, because 155400335415 - 2⁸ = 155400335159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155400335415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132820215 + ... + 132821384.

It is an arithmetic number, because the mean of its divisors is an integer number (12086692800).

Almost surely, 2^155400335415 is an apocalyptic number.

155400335415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155400335415 is a deficient number, since it is larger than the sum of its proper divisors (134680291785).

155400335415 is a wasteful number, since it uses less digits than its factorization.

155400335415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265641623 (or 265641620 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 155400335415 its reverse (514533004551), we get a palindrome (669933339966).

The spelling of 155400335415 in words is "one hundred fifty-five billion, four hundred million, three hundred thirty-five thousand, four hundred fifteen".