162445544261 has 24 divisors (see below), whose sum is σ = 222003510624. Its totient is φ = 116843942880.

The previous prime is 162445544251. The next prime is 162445544263.

162445544261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 162445544261 - 2⁶ = 162445544197 is a prime.

It is a super-2 number, since 2×162445544261² (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 (162445544263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11584655 + ... + 11598668.

It is an arithmetic number, because the mean of its divisors is an integer number (9250146276).

Almost surely, 2^162445544261 is an apocalyptic number.

162445544261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162445544261 is a deficient number, since it is larger than the sum of its proper divisors (59557966363).

162445544261 is a wasteful number, since it uses less digits than its factorization.

162445544261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23183361 (or 23183354 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

The spelling of 162445544261 in words is "one hundred sixty-two billion, four hundred forty-five million, five hundred forty-four thousand, two hundred sixty-one".