35725091160561 has 64 divisors (see below), whose sum is σ = 55364215495680. Its totient is φ = 20262505328640.

The previous prime is 35725091160559. The next prime is 35725091160571. The reversal of 35725091160561 is 16506119052753.

It is a happy number.

It is not a de Polignac number, because 35725091160561 - 2¹ = 35725091160559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (35725091160571) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504606181 + ... + 504676973.

It is an arithmetic number, because the mean of its divisors is an integer number (865065867120).

Almost surely, 2^{35725091160561} is an apocalyptic number.

It is an amenable number.

35725091160561 is a deficient number, since it is larger than the sum of its proper divisors (19639124335119).

35725091160561 is a wasteful number, since it uses less digits than its factorization.

35725091160561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80606.

The product of its (nonzero) digits is 1701000, while the sum is 51.

The spelling of 35725091160561 in words is "thirty-five trillion, seven hundred twenty-five billion, ninety-one million, one hundred sixty thousand, five hundred sixty-one".