157606317644 has 6 divisors (see below), whose sum is σ = 275811055884. Its totient is φ = 78803158820.

The previous prime is 157606317623. The next prime is 157606317677. The reversal of 157606317644 is 446713606751.

157606317644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157606317644² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157606317592 and 157606317601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19700789702 + ... + 19700789709.

It is an arithmetic number, because the mean of its divisors is an integer number (45968509314).

Almost surely, 2^157606317644 is an apocalyptic number.

It is an amenable number.

157606317644 is a deficient number, since it is larger than the sum of its proper divisors (118204738240).

157606317644 is a wasteful number, since it uses less digits than its factorization.

157606317644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39401579415 (or 39401579413 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 157606317644 in words is "one hundred fifty-seven billion, six hundred six million, three hundred seventeen thousand, six hundred forty-four".