159772906545 has 32 divisors (see below), whose sum is σ = 295854366720. Its totient is φ = 72114494400.

The previous prime is 159772906541. The next prime is 159772906567. The reversal of 159772906545 is 545609277951.

It is a happy number.

It is not a de Polignac number, because 159772906545 - 2² = 159772906541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159772906541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9622381 + ... + 9638970.

It is an arithmetic number, because the mean of its divisors is an integer number (9245448960).

Almost surely, 2^159772906545 is an apocalyptic number.

159772906545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159772906545 is a deficient number, since it is larger than the sum of its proper divisors (136081460175).

159772906545 is a wasteful number, since it uses less digits than its factorization.

159772906545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19261445.

The product of its (nonzero) digits is 23814000, while the sum is 60.

The spelling of 159772906545 in words is "one hundred fifty-nine billion, seven hundred seventy-two million, nine hundred six thousand, five hundred forty-five".