157021208460 has 72 divisors (see below), whose sum is σ = 477020784240. Its totient is φ = 41808751488.

The previous prime is 157021208453. The next prime is 157021208467. The reversal of 157021208460 is 64802120751.

157021208460 is a `hidden beast` number, since 1 + 5 + 70 + 2 + 120 + 8 + 460 = 666.

It is an interprime number because it is at equal distance from previous prime (157021208453) and next prime (157021208467).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (157021208467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543247 + ... + 780486.

It is an arithmetic number, because the mean of its divisors is an integer number (6625288670).

Almost surely, 2^157021208460 is an apocalyptic number.

157021208460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157021208460 is an abundant number, since it is smaller than the sum of its proper divisors (319999575780).

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

157021208460 is a wasteful number, since it uses less digits than its factorization.

157021208460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324407 (or 1324402 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 157021208460 in words is "one hundred fifty-seven billion, twenty-one million, two hundred eight thousand, four hundred sixty".