1161666615562 has 8 divisors (see below), whose sum is σ = 1742507750592. Its totient is φ = 580830698700.

The previous prime is 1161666615511. The next prime is 1161666615617. The reversal of 1161666615562 is 2655166661611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1161666615562² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690114 + ... + 1673197.

It is an arithmetic number, because the mean of its divisors is an integer number (217813468824).

Almost surely, 2^{1161666615562} is an apocalyptic number.

1161666615562 is a deficient number, since it is larger than the sum of its proper divisors (580841135030).

1161666615562 is a wasteful number, since it uses less digits than its factorization.

1161666615562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609084.

The product of its digits is 2332800, while the sum is 52.

The spelling of 1161666615562 in words is "one trillion, one hundred sixty-one billion, six hundred sixty-six million, six hundred fifteen thousand, five hundred sixty-two".