373664125221 has 4 divisors (see below), whose sum is σ = 498218833632. Its totient is φ = 249109416812.

The previous prime is 373664125147. The next prime is 373664125267. The reversal of 373664125221 is 122521466373.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122521466373 = 3 ⋅40840488791.

It is a cyclic number.

It is not a de Polignac number, because 373664125221 - 2²⁷ = 373529907493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373664125421) 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, 62277354201 + ... + 62277354206.

It is an arithmetic number, because the mean of its divisors is an integer number (124554708408).

Almost surely, 2^373664125221 is an apocalyptic number.

It is an amenable number.

373664125221 is a deficient number, since it is larger than the sum of its proper divisors (124554708411).

373664125221 is a wasteful number, since it uses less digits than its factorization.

373664125221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124554708410.

The product of its digits is 362880, while the sum is 42.

The spelling of 373664125221 in words is "three hundred seventy-three billion, six hundred sixty-four million, one hundred twenty-five thousand, two hundred twenty-one".