145904618904 has 32 divisors (see below), whose sum is σ = 397921688640. Its totient is φ = 44213520800.

The previous prime is 145904618891. The next prime is 145904618917. The reversal of 145904618904 is 409816409541.

It is an interprime number because it is at equal distance from previous prime (145904618891) and next prime (145904618917).

It is a super-2 number, since 2×145904618904² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276334242 + ... + 276334769.

It is an arithmetic number, because the mean of its divisors is an integer number (12435052770).

Almost surely, 2^145904618904 is an apocalyptic number.

It is an amenable number.

145904618904 is an abundant number, since it is smaller than the sum of its proper divisors (252017069736).

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

145904618904 is a wasteful number, since it uses less digits than its factorization.

145904618904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552669031 (or 552669027 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 145904618904 in words is "one hundred forty-five billion, nine hundred four million, six hundred eighteen thousand, nine hundred four".