157515142068 has 72 divisors (see below), whose sum is σ = 407115403968. Its totient is φ = 51337594368.

The previous prime is 157515142063. The next prime is 157515142087. The reversal of 157515142068 is 860241515751.

157515142068 is a `hidden beast` number, since 1 + 5 + 7 + 51 + 514 + 20 + 68 = 666.

It is a super-2 number, since 2×157515142068² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157515142063) 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 23 ways as a sum of consecutive naturals, for example, 18105 + ... + 561567.

Almost surely, 2^157515142068 is an apocalyptic number.

157515142068 is a gapful number since it is divisible by the number (18) 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 157515142068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203557701984).

157515142068 is an abundant number, since it is smaller than the sum of its proper divisors (249600261900).

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

157515142068 is a wasteful number, since it uses less digits than its factorization.

157515142068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543653 (or 543648 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 157515142068 in words is "one hundred fifty-seven billion, five hundred fifteen million, one hundred forty-two thousand, sixty-eight".