157664954745 has 12 divisors (see below), whose sum is σ = 273285921636. Its totient is φ = 84087975840.

The previous prime is 157664954731. The next prime is 157664954749. The reversal of 157664954745 is 547459466751.

157664954745 is a `hidden beast` number, since 1 + 5 + 7 + 6 + 6 + 49 + 547 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 91650902121 + 66014052624 = 302739^2 + 256932^2 .

It is not a de Polignac number, because 157664954745 - 2²⁵ = 157631400313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157664954749) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1751832786 + ... + 1751832875.

It is an arithmetic number, because the mean of its divisors is an integer number (22773826803).

Almost surely, 2^157664954745 is an apocalyptic number.

157664954745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157664954745 is a deficient number, since it is larger than the sum of its proper divisors (115620966891).

157664954745 is a wasteful number, since it uses less digits than its factorization.

157664954745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503665672 (or 3503665669 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 157664954745 in words is "one hundred fifty-seven billion, six hundred sixty-four million, nine hundred fifty-four thousand, seven hundred forty-five".