33697055490 has 192 divisors, whose sum is σ = 97436971008. Its totient is φ = 7428758400.

The previous prime is 33697055477. The next prime is 33697055519. The reversal of 33697055490 is 9455079633.

It is a happy number.

It is a super-2 number, since 2×33697055490² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15811725 + ... + 15813855.

It is an arithmetic number, because the mean of its divisors is an integer number (507484224).

Almost surely, 2^33697055490 is an apocalyptic number.

33697055490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33697055490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48718485504).

33697055490 is an abundant number, since it is smaller than the sum of its proper divisors (63739915518).

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

33697055490 is a wasteful number, since it uses less digits than its factorization.

33697055490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2526 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 51.

The spelling of 33697055490 in words is "thirty-three billion, six hundred ninety-seven million, fifty-five thousand, four hundred ninety".