163077901382881 has 4 divisors (see below), whose sum is σ = 163083653515264. Its totient is φ = 163072149250500.

The previous prime is 163077901382867. The next prime is 163077901382897. The reversal of 163077901382881 is 188283109770361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163077901382881 - 2⁵ = 163077901382849 is a prime.

It is a super-2 number, since 2×163077901382881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163077901322881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2876023665 + ... + 2876080366.

It is an arithmetic number, because the mean of its divisors is an integer number (40770913378816).

Almost surely, 2^{163077901382881} is an apocalyptic number.

It is an amenable number.

163077901382881 is a deficient number, since it is larger than the sum of its proper divisors (5752132383).

163077901382881 is an equidigital number, since it uses as much as digits as its factorization.

163077901382881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752132382.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 163077901382881 in words is "one hundred sixty-three trillion, seventy-seven billion, nine hundred one million, three hundred eighty-two thousand, eight hundred eighty-one".