166602413250 has 384 divisors, whose sum is σ = 578839322880. Its totient is φ = 35150371200.

The previous prime is 166602413249. The next prime is 166602413251. The reversal of 166602413250 is 52314206661.

It is an interprime number because it is at equal distance from previous prime (166602413249) and next prime (166602413251).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166602413251) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4280377 + ... + 4319123.

It is an arithmetic number, because the mean of its divisors is an integer number (1507394070).

Almost surely, 2^166602413250 is an apocalyptic number.

166602413250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166602413250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289419661440).

166602413250 is an abundant number, since it is smaller than the sum of its proper divisors (412236909630).

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

166602413250 is a wasteful number, since it uses less digits than its factorization.

166602413250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38800 (or 38777 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

It can be divided in two parts, 16660 and 2413250, that added together give a triangular number (2429910 = T₂₂₀₄).

The spelling of 166602413250 in words is "one hundred sixty-six billion, six hundred two million, four hundred thirteen thousand, two hundred fifty".