145695398856 has 64 divisors (see below), whose sum is σ = 429700730880. Its totient is φ = 40284440640.

The previous prime is 145695398819. The next prime is 145695398951. The reversal of 145695398856 is 658893596541.

It is a super-2 number, since 2×145695398856² (a number of 23 digits) contains 22 as substring.

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, 13982446 + ... + 13992861.

It is an arithmetic number, because the mean of its divisors is an integer number (6714073920).

Almost surely, 2^145695398856 is an apocalyptic number.

It is an amenable number.

145695398856 is an abundant number, since it is smaller than the sum of its proper divisors (284005332024).

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

145695398856 is a wasteful number, since it uses less digits than its factorization.

145695398856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27975354 (or 27975350 counting only the distinct ones).

The product of its digits is 279936000, while the sum is 69.

The spelling of 145695398856 in words is "one hundred forty-five billion, six hundred ninety-five million, three hundred ninety-eight thousand, eight hundred fifty-six".