15642213125404 has 6 divisors (see below), whose sum is σ = 27373872969464. Its totient is φ = 7821106562700.

The previous prime is 15642213125377. The next prime is 15642213125431. The reversal of 15642213125404 is 40452131224651.

It is an interprime number because it is at equal distance from previous prime (15642213125377) and next prime (15642213125431).

It is a super-2 number, since 2×15642213125404² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955276640672 + ... + 1955276640679.

Almost surely, 2^{15642213125404} is an apocalyptic number.

It is an amenable number.

15642213125404 is a deficient number, since it is larger than the sum of its proper divisors (11731659844060).

15642213125404 is a wasteful number, since it uses less digits than its factorization.

15642213125404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910553281355 (or 3910553281353 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 15642213125404 in words is "fifteen trillion, six hundred forty-two billion, two hundred thirteen million, one hundred twenty-five thousand, four hundred four".