166263552 has 324 divisors, whose sum is σ = 602971824. Its totient is φ = 43130880.

The previous prime is 166263551. The next prime is 166263557. The reversal of 166263552 is 255362661.

It is a happy number.

166263552 is a `hidden beast` number, since 16 + 6 + 2 + 635 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (166263551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2725602 + ... + 2725662.

Almost surely, 2^166263552 is an apocalyptic number.

166263552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166263552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301485912).

166263552 is an abundant number, since it is smaller than the sum of its proper divisors (436708272).

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

166263552 is a wasteful number, since it uses less digits than its factorization.

166263552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 86 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 166263552 is about 12894.3224715376. The cubic root of 166263552 is about 549.8771648550.

The spelling of 166263552 in words is "one hundred sixty-six million, two hundred sixty-three thousand, five hundred fifty-two".