166235451630 has 16 divisors (see below), whose sum is σ = 398965083984. Its totient is φ = 44329453760.

The previous prime is 166235451601. The next prime is 166235451631. The reversal of 166235451630 is 36154532661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166235451631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2770590831 + ... + 2770590890.

It is an arithmetic number, because the mean of its divisors is an integer number (24935317749).

Almost surely, 2^166235451630 is an apocalyptic number.

166235451630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166235451630 is an abundant number, since it is smaller than the sum of its proper divisors (232729632354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166235451630 is a wasteful number, since it uses less digits than its factorization.

166235451630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541181731.

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 166235451630 in words is "one hundred sixty-six billion, two hundred thirty-five million, four hundred fifty-one thousand, six hundred thirty".