55701161491 has 8 divisors (see below), whose sum is σ = 57509046144. Its totient is φ = 53893968960.

The previous prime is 55701161437. The next prime is 55701161557. The reversal of 55701161491 is 19416110755.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55701161491 - 2¹⁵ = 55701128723 is a prime.

It is a super-2 number, since 2×55701161491² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55701161891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6916 + ... + 333841.

It is an arithmetic number, because the mean of its divisors is an integer number (7188630768).

Almost surely, 2^55701161491 is an apocalyptic number.

55701161491 is a deficient number, since it is larger than the sum of its proper divisors (1807884653).

55701161491 is a wasteful number, since it uses less digits than its factorization.

55701161491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346061.

The product of its (nonzero) digits is 37800, while the sum is 40.

The spelling of 55701161491 in words is "fifty-five billion, seven hundred one million, one hundred sixty-one thousand, four hundred ninety-one".