151370432721 has 8 divisors (see below), whose sum is σ = 224252492960. Its totient is φ = 100913621796.

The previous prime is 151370432713. The next prime is 151370432723. The reversal of 151370432721 is 127234073151.

151370432721 is a `hidden beast` number, since 1 + 513 + 70 + 4 + 3 + 2 + 72 + 1 = 666.

It is not a de Polignac number, because 151370432721 - 2³ = 151370432713 is a prime.

It is a super-4 number, since 4×151370432721⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151370432723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2803156135 + ... + 2803156188.

It is an arithmetic number, because the mean of its divisors is an integer number (28031561620).

Almost surely, 2^151370432721 is an apocalyptic number.

It is an amenable number.

151370432721 is a deficient number, since it is larger than the sum of its proper divisors (72882060239).

151370432721 is an equidigital number, since it uses as much as digits as its factorization.

151370432721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606312332 (or 5606312326 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The spelling of 151370432721 in words is "one hundred fifty-one billion, three hundred seventy million, four hundred thirty-two thousand, seven hundred twenty-one".