145402040664 has 24 divisors (see below), whose sum is σ = 393797193660. Its totient is φ = 48467346864.

The previous prime is 145402040551. The next prime is 145402040681. The reversal of 145402040664 is 466040204541.

145402040664 is a `hidden beast` number, since 14 + 540 + 2 + 0 + 40 + 6 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×145402040664² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1009736322 + ... + 1009736465.

Almost surely, 2^145402040664 is an apocalyptic number.

It is an amenable number.

145402040664 is an abundant number, since it is smaller than the sum of its proper divisors (248395152996).

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

145402040664 is a wasteful number, since it uses less digits than its factorization.

145402040664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019472799 (or 2019472792 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 145402040664 in words is "one hundred forty-five billion, four hundred two million, forty thousand, six hundred sixty-four".