15608166224220 has 72 divisors (see below), whose sum is σ = 47373241284096. Its totient is φ = 4159674767232.

The previous prime is 15608166224173. The next prime is 15608166224227. The reversal of 15608166224220 is 2242266180651.

15608166224220 is a `hidden beast` number, since 1 + 5 + 6 + 0 + 8 + 16 + 622 + 4 + 2 + 2 + 0 = 666.

It is a super-2 number, since 2×15608166224220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15608166224227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25771627 + ... + 26370306.

Almost surely, 2^{15608166224220} is an apocalyptic number.

15608166224220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15608166224220 is an abundant number, since it is smaller than the sum of its proper divisors (31765075059876).

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

15608166224220 is a wasteful number, since it uses less digits than its factorization.

15608166224220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52143611 (or 52143606 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 15608166224220 in words is "fifteen trillion, six hundred eight billion, one hundred sixty-six million, two hundred twenty-four thousand, two hundred twenty".