157462189920 has 1920 divisors, whose sum is σ = 731827353600. Its totient is φ = 31408570368.

The previous prime is 157462189919. The next prime is 157462189957. The reversal of 157462189920 is 29981264751.

It is a happy number.

157462189920 is a `hidden beast` number, since 1 + 5 + 7 + 4 + 621 + 8 + 9 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 3350259337 + ... + 3350259383.

It is an arithmetic number, because the mean of its divisors is an integer number (381160080).

Almost surely, 2^157462189920 is an apocalyptic number.

157462189920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157462189920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365913676800).

157462189920 is an abundant number, since it is smaller than the sum of its proper divisors (574365163680).

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

157462189920 is a wasteful number, since it uses less digits than its factorization.

157462189920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 157462189920 in words is "one hundred fifty-seven billion, four hundred sixty-two million, one hundred eighty-nine thousand, nine hundred twenty".