166711295040 has 56 divisors (see below), whose sum is σ = 529308364800. Its totient is φ = 44456345088.

The previous prime is 166711295033. The next prime is 166711295119. The reversal of 166711295040 is 40592117661.

It is a junction number, because it is equal to n+sod(n) for n = 166711294983 and 166711295001.

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, 86827840 + ... + 86829759.

Almost surely, 2^166711295040 is an apocalyptic number.

166711295040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166711295040 is an abundant number, since it is smaller than the sum of its proper divisors (362597069760).

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

166711295040 is a wasteful number, since it uses less digits than its factorization.

166711295040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173657619 (or 173657609 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 166711295040 in words is "one hundred sixty-six billion, seven hundred eleven million, two hundred ninety-five thousand, forty".