151416407221 has 4 divisors (see below), whose sum is σ = 151569199744. Its totient is φ = 151263614700.

The previous prime is 151416407213. The next prime is 151416407227. The reversal of 151416407221 is 122704614151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151416407221 - 2³ = 151416407213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151416407227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76394775 + ... + 76396756.

It is an arithmetic number, because the mean of its divisors is an integer number (37892299936).

Almost surely, 2^151416407221 is an apocalyptic number.

It is an amenable number.

151416407221 is a deficient number, since it is larger than the sum of its proper divisors (152792523).

151416407221 is an equidigital number, since it uses as much as digits as its factorization.

151416407221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152792522.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 151416407221 in words is "one hundred fifty-one billion, four hundred sixteen million, four hundred seven thousand, two hundred twenty-one".