1660796604531 has 16 divisors (see below), whose sum is σ = 2460527176320. Its totient is φ = 1107158243400.

The previous prime is 1660796604503. The next prime is 1660796604539. The reversal of 1660796604531 is 1354066970661.

It is a happy number.

1660796604531 is a `hidden beast` number, since 1 + 6 + 60 + 79 + 6 + 60 + 453 + 1 = 666.

It is not a de Polignac number, because 1660796604531 - 2³⁵ = 1626436866163 is a prime.

It is a super-2 number, since 2×1660796604531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1660796604539) 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, 315945 + ... + 1849706.

It is an arithmetic number, because the mean of its divisors is an integer number (153782948520).

Almost surely, 2^{1660796604531} is an apocalyptic number.

1660796604531 is a deficient number, since it is larger than the sum of its proper divisors (799730571789).

1660796604531 is a wasteful number, since it uses less digits than its factorization.

1660796604531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194063 (or 2194057 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 1660796604531 in words is "one trillion, six hundred sixty billion, seven hundred ninety-six million, six hundred four thousand, five hundred thirty-one".