158387157620 has 12 divisors (see below), whose sum is σ = 332613031044. Its totient is φ = 63354863040.

The previous prime is 158387157547. The next prime is 158387157623. The reversal of 158387157620 is 26751783851.

It can be written as a sum of positive squares in 2 ways, for example, as 64871071204 + 93516086416 = 254698^2 + 305804^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158387157623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3959678921 + ... + 3959678960.

It is an arithmetic number, because the mean of its divisors is an integer number (27717752587).

Almost surely, 2^158387157620 is an apocalyptic number.

158387157620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158387157620 is an abundant number, since it is smaller than the sum of its proper divisors (174225873424).

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

158387157620 is a wasteful number, since it uses less digits than its factorization.

158387157620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7919357890 (or 7919357888 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 53.

The spelling of 158387157620 in words is "one hundred fifty-eight billion, three hundred eighty-seven million, one hundred fifty-seven thousand, six hundred twenty".