166953790250 has 96 divisors (see below), whose sum is σ = 350100681840. Its totient is φ = 59518368000.

The previous prime is 166953790249. The next prime is 166953790253. The reversal of 166953790250 is 52097359661.

It can be written as a sum of positive squares in 24 ways, for example, as 56104080769 + 110849709481 = 236863^2 + 332941^2 .

It is a junction number, because it is equal to n+sod(n) for n = 166953790192 and 166953790201.

It is not an unprimeable number, because it can be changed into a prime (166953790253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1157120 + ... + 1293380.

Almost surely, 2^166953790250 is an apocalyptic number.

166953790250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166953790250 is an abundant number, since it is smaller than the sum of its proper divisors (183146891590).

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

166953790250 is a wasteful number, since it uses less digits than its factorization.

166953790250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136333 (or 136310 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 53.

The spelling of 166953790250 in words is "one hundred sixty-six billion, nine hundred fifty-three million, seven hundred ninety thousand, two hundred fifty".