65406057000 has 128 divisors (see below), whose sum is σ = 204237970560. Its totient is φ = 17426995200.

The previous prime is 65406056993. The next prime is 65406057061. The reversal of 65406057000 is 75060456.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3840504 + ... + 3857496.

It is an arithmetic number, because the mean of its divisors is an integer number (1595609145).

Almost surely, 2^65406057000 is an apocalyptic number.

65406057000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65406057000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102118985280).

65406057000 is an abundant number, since it is smaller than the sum of its proper divisors (138831913560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65406057000 is a wasteful number, since it uses less digits than its factorization.

65406057000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18300 (or 18286 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 65406057000 in words is "sixty-five billion, four hundred six million, fifty-seven thousand".