158689394970 has 16 divisors (see below), whose sum is σ = 380854548000. Its totient is φ = 42317171984.

The previous prime is 158689394959. The next prime is 158689395013. The reversal of 158689394970 is 79493986851.

It is a super-2 number, since 2×158689394970² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 158689394895 and 158689394904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2644823220 + ... + 2644823279.

It is an arithmetic number, because the mean of its divisors is an integer number (23803409250).

Almost surely, 2^158689394970 is an apocalyptic number.

158689394970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158689394970 is an abundant number, since it is smaller than the sum of its proper divisors (222165153030).

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

158689394970 is a wasteful number, since it uses less digits than its factorization.

158689394970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5289646509.

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 158689394970 in words is "one hundred fifty-eight billion, six hundred eighty-nine million, three hundred ninety-four thousand, nine hundred seventy".