157194464690 has 16 divisors (see below), whose sum is σ = 283491059328. Its totient is φ = 62757558576.

The previous prime is 157194464683. The next prime is 157194464717. The reversal of 157194464690 is 96464491751.

It is a super-2 number, since 2×157194464690² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15022922 + ... + 15033381.

It is an arithmetic number, because the mean of its divisors is an integer number (17718191208).

Almost surely, 2^157194464690 is an apocalyptic number.

157194464690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157194464690 is a deficient number, since it is larger than the sum of its proper divisors (126296594638).

157194464690 is a wasteful number, since it uses less digits than its factorization.

157194464690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30056833.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 157194464690 in words is "one hundred fifty-seven billion, one hundred ninety-four million, four hundred sixty-four thousand, six hundred ninety".