165151634432554 has 32 divisors (see below), whose sum is σ = 316037679192576. Its totient is φ = 62848402107120.

The previous prime is 165151634432527. The next prime is 165151634432563. The reversal of 165151634432554 is 455234436151561.

It is a junction number, because it is equal to n+sod(n) for n = 165151634432495 and 165151634432504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12469914432 + ... + 12469927675.

It is an arithmetic number, because the mean of its divisors is an integer number (9876177474768).

Almost surely, 2^{165151634432554} is an apocalyptic number.

165151634432554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165151634432554 is a deficient number, since it is larger than the sum of its proper divisors (150886044760022).

165151634432554 is a wasteful number, since it uses less digits than its factorization.

165151634432554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24939842170.

The product of its digits is 25920000, while the sum is 55.

The spelling of 165151634432554 in words is "one hundred sixty-five trillion, one hundred fifty-one billion, six hundred thirty-four million, four hundred thirty-two thousand, five hundred fifty-four".