1183706601961 has 16 divisors (see below), whose sum is σ = 1287617917824. Its totient is φ = 1081646970624.

The previous prime is 1183706601947. The next prime is 1183706601977. The reversal of 1183706601961 is 1691066073811.

It is a cyclic number.

It is not a de Polignac number, because 1183706601961 - 2²⁹ = 1183169731049 is a prime.

It is a super-2 number, since 2×1183706601961² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1183706101961) 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, 1590241 + ... + 2212753.

It is an arithmetic number, because the mean of its divisors is an integer number (80476119864).

Almost surely, 2^{1183706601961} is an apocalyptic number.

It is an amenable number.

1183706601961 is a deficient number, since it is larger than the sum of its proper divisors (103911315863).

1183706601961 is a wasteful number, since it uses less digits than its factorization.

1183706601961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624000.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 1183706601961 in words is "one trillion, one hundred eighty-three billion, seven hundred six million, six hundred one thousand, nine hundred sixty-one".