65425040156 has 24 divisors (see below), whose sum is σ = 130880956416. Its totient is φ = 28032686640.

The previous prime is 65425040137. The next prime is 65425040159. The reversal of 65425040156 is 65104052456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65425040159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153956 + ... + 393131.

It is an arithmetic number, because the mean of its divisors is an integer number (5453373184).

Almost surely, 2^65425040156 is an apocalyptic number.

It is an amenable number.

65425040156 is an abundant number, since it is smaller than the sum of its proper divisors (65455916260).

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

65425040156 is a wasteful number, since it uses less digits than its factorization.

65425040156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551369 (or 551367 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 65425040156 in words is "sixty-five billion, four hundred twenty-five million, forty thousand, one hundred fifty-six".