145666362920988 has 192 divisors, whose sum is σ = 440384347504640. Its totient is φ = 36391942579968.

The previous prime is 145666362920971. The next prime is 145666362921017. The reversal of 145666362920988 is 889029263666541.

It is a super-2 number, since 2×145666362920988² (a number of 29 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 63 ways as a sum of consecutive naturals, for example, 213425931 + ... + 214107357.

Almost surely, 2^{145666362920988} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145666362920988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220192173752320).

145666362920988 is an abundant number, since it is smaller than the sum of its proper divisors (294717984583652).

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

145666362920988 is a wasteful number, since it uses less digits than its factorization.

145666362920988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691776 (or 691774 counting only the distinct ones).

The product of its (nonzero) digits is 1612431360, while the sum is 75.

The spelling of 145666362920988 in words is "one hundred forty-five trillion, six hundred sixty-six billion, three hundred sixty-two million, nine hundred twenty thousand, nine hundred eighty-eight".