166563252141454 has 128 divisors (see below), whose sum is σ = 308136852172800. Its totient is φ = 65911781984256.

The previous prime is 166563252141413. The next prime is 166563252141467. The reversal of 166563252141454 is 454141252365661.

It is a junction number, because it is equal to n+sod(n) for n = 166563252141395 and 166563252141404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 929688607 + ... + 929867749.

It is an arithmetic number, because the mean of its divisors is an integer number (2407319157600).

Almost surely, 2^{166563252141454} is an apocalyptic number.

166563252141454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166563252141454 is a deficient number, since it is larger than the sum of its proper divisors (141573600031346).

166563252141454 is a wasteful number, since it uses less digits than its factorization.

166563252141454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179642.

The product of its digits is 20736000, while the sum is 55.

The spelling of 166563252141454 in words is "one hundred sixty-six trillion, five hundred sixty-three billion, two hundred fifty-two million, one hundred forty-one thousand, four hundred fifty-four".