145515674640 has 80 divisors (see below), whose sum is σ = 515541253248. Its totient is φ = 33260725248.

The previous prime is 145515674567. The next prime is 145515674663. The reversal of 145515674640 is 46476515541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 145515674640.

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, 43306557 + ... + 43309916.

Almost surely, 2^145515674640 is an apocalyptic number.

145515674640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145515674640 is an abundant number, since it is smaller than the sum of its proper divisors (370025578608).

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

145515674640 is a wasteful number, since it uses less digits than its factorization.

145515674640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86616496 (or 86616490 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 145515674640 in words is "one hundred forty-five billion, five hundred fifteen million, six hundred seventy-four thousand, six hundred forty".