157606317643 has 16 divisors (see below), whose sum is σ = 162026612352. Its totient is φ = 153221040000.

The previous prime is 157606317623. The next prime is 157606317677. The reversal of 157606317643 is 346713606751.

It is a de Polignac number, because none of the positive numbers 2^k-157606317643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157606317613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31200468 + ... + 31205518.

It is an arithmetic number, because the mean of its divisors is an integer number (10126663272).

Almost surely, 2^157606317643 is an apocalyptic number.

157606317643 is a deficient number, since it is larger than the sum of its proper divisors (4420294709).

157606317643 is a wasteful number, since it uses less digits than its factorization.

157606317643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 157606317643 in words is "one hundred fifty-seven billion, six hundred six million, three hundred seventeen thousand, six hundred forty-three".