151720066000000 has 112 divisors (see below), whose sum is σ = 377813692633770. Its totient is φ = 60688025600000.

The previous prime is 151720065999961. The next prime is 151720066000049. The reversal of 151720066000000 is 660027151.

It can be written as a sum of positive squares in 7 ways, for example, as 48908091138624 + 102811974861376 = 6993432^2 + 10139624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 35930017 + ... + 39930016.

Almost surely, 2^{151720066000000} is an apocalyptic number.

151720066000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151720066000000 is an abundant number, since it is smaller than the sum of its proper divisors (226093626633770).

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

151720066000000 is an frugal number, since it uses more digits than its factorization.

151720066000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75860077 (or 75860040 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 151720066000000 in words is "one hundred fifty-one trillion, seven hundred twenty billion, sixty-six million", and thus it is an aban number.