157765783380758 has 32 divisors (see below), whose sum is σ = 270563604438528. Its totient is φ = 67586914886400.

The previous prime is 157765783380757. The next prime is 157765783380791. The reversal of 157765783380758 is 857083387567751.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157765783380757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1731228191 + ... + 1731319317.

It is an arithmetic number, because the mean of its divisors is an integer number (8455112638704).

Almost surely, 2^{157765783380758} is an apocalyptic number.

157765783380758 is a deficient number, since it is larger than the sum of its proper divisors (112797821057770).

157765783380758 is a wasteful number, since it uses less digits than its factorization.

157765783380758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139148.

The product of its (nonzero) digits is 8297856000, while the sum is 80.

The spelling of 157765783380758 in words is "one hundred fifty-seven trillion, seven hundred sixty-five billion, seven hundred eighty-three million, three hundred eighty thousand, seven hundred fifty-eight".