620461662605 has 16 divisors (see below), whose sum is σ = 770378843520. Its totient is φ = 479159456832.

The previous prime is 620461662593. The next prime is 620461662629. The reversal of 620461662605 is 506266164026.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 620461662605 - 2²⁶ = 620394553741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330632 + ... + 1161998.

It is an arithmetic number, because the mean of its divisors is an integer number (48148677720).

Almost surely, 2^620461662605 is an apocalyptic number.

It is an amenable number.

620461662605 is a deficient number, since it is larger than the sum of its proper divisors (149917180915).

620461662605 is a wasteful number, since it uses less digits than its factorization.

620461662605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836548.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 620461662605 in words is "six hundred twenty billion, four hundred sixty-one million, six hundred sixty-two thousand, six hundred five".