165562746461 has 8 divisors (see below), whose sum is σ = 189241550400. Its totient is φ = 141890688288.

The previous prime is 165562746457. The next prime is 165562746521. The reversal of 165562746461 is 164647265561.

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 165562746461 - 2² = 165562746457 is a prime.

It is a super-2 number, since 2×165562746461² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165562716461) 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, 1633736 + ... + 1732113.

It is an arithmetic number, because the mean of its divisors is an integer number (23655193800).

Almost surely, 2^165562746461 is an apocalyptic number.

It is an amenable number.

165562746461 is a deficient number, since it is larger than the sum of its proper divisors (23678803939).

165562746461 is an equidigital number, since it uses as much as digits as its factorization.

165562746461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372883.

The product of its digits is 7257600, while the sum is 53.

The spelling of 165562746461 in words is "one hundred sixty-five billion, five hundred sixty-two million, seven hundred forty-six thousand, four hundred sixty-one".