157447056642 has 8 divisors (see below), whose sum is σ = 314894113296. Its totient is φ = 52482352212.

The previous prime is 157447056631. The next prime is 157447056653. The reversal of 157447056642 is 246650744751.

It is an interprime number because it is at equal distance from previous prime (157447056631) and next prime (157447056653).

It is a sphenic number, since it is the product of 3 distinct primes.

157447056642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13120588048 + ... + 13120588059.

It is an arithmetic number, because the mean of its divisors is an integer number (39361764162).

Almost surely, 2^157447056642 is an apocalyptic number.

157447056642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157447056642 is a wasteful number, since it uses less digits than its factorization.

157447056642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26241176112.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 157447056642 in words is "one hundred fifty-seven billion, four hundred forty-seven million, fifty-six thousand, six hundred forty-two".