690870032160 has 384 divisors, whose sum is σ = 2856039782400. Its totient is φ = 136001617920.

The previous prime is 690870032131. The next prime is 690870032173. The reversal of 690870032160 is 61230078096.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210336 + ... + 1194144.

It is an arithmetic number, because the mean of its divisors is an integer number (7437603600).

Almost surely, 2^690870032160 is an apocalyptic number.

690870032160 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 690870032160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1428019891200).

690870032160 is an abundant number, since it is smaller than the sum of its proper divisors (2165169750240).

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

690870032160 is a wasteful number, since it uses less digits than its factorization.

690870032160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983864 (or 983856 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 690870032160 in words is "six hundred ninety billion, eight hundred seventy million, thirty-two thousand, one hundred sixty".