690122160 has 320 divisors, whose sum is σ = 2926479360. Its totient is φ = 145566720.

The previous prime is 690122159. The next prime is 690122189. The reversal of 690122160 is 61221096.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 194805 + ... + 198315.

It is an arithmetic number, because the mean of its divisors is an integer number (9145248).

Almost surely, 2^690122160 is an apocalyptic number.

690122160 is a gapful number since it is divisible by the number (60) 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 690122160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463239680).

690122160 is an abundant number, since it is smaller than the sum of its proper divisors (2236357200).

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

690122160 is a wasteful number, since it uses less digits than its factorization.

690122160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 690122160 is about 26270.1762460780. The cubic root of 690122160 is about 883.7077376497.

The spelling of 690122160 in words is "six hundred ninety million, one hundred twenty-two thousand, one hundred sixty".