163445025026051 has 4 divisors (see below), whose sum is σ = 163452522870000. Its totient is φ = 163437527182104.

The previous prime is 163445025026027. The next prime is 163445025026089. The reversal of 163445025026051 is 150620520544361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163445025026051 - 2⁶ = 163445025025987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163445025025993 and 163445025026011.

It is not an unprimeable number, because it can be changed into a prime (163445025026651) 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, 3748889276 + ... + 3748932873.

It is an arithmetic number, because the mean of its divisors is an integer number (40863130717500).

Almost surely, 2^{163445025026051} is an apocalyptic number.

163445025026051 is a deficient number, since it is larger than the sum of its proper divisors (7497843949).

163445025026051 is an equidigital number, since it uses as much as digits as its factorization.

163445025026051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497843948.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 163445025026051 in words is "one hundred sixty-three trillion, four hundred forty-five billion, twenty-five million, twenty-six thousand, fifty-one".