670520725440 has 112 divisors (see below), whose sum is σ = 2163803546400. Its totient is φ = 175874273280.

The previous prime is 670520725439. The next prime is 670520725477. The reversal of 670520725440 is 44527025076.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 670520725392 and 670520725401.

It is a congruent number.

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, 5666515 + ... + 5783634.

Almost surely, 2^670520725440 is an apocalyptic number.

670520725440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670520725440 is an abundant number, since it is smaller than the sum of its proper divisors (1493282820960).

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

670520725440 is a wasteful number, since it uses less digits than its factorization.

670520725440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450230 (or 11450220 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 670520725440 in words is "six hundred seventy billion, five hundred twenty million, seven hundred twenty-five thousand, four hundred forty".