33642640516 has 24 divisors (see below), whose sum is σ = 58964734080. Its totient is φ = 16795599072.

The previous prime is 33642640513. The next prime is 33642640519. The reversal of 33642640516 is 61504624633.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33642640513) and next prime (33642640519).

It is a super-2 number, since 2×33642640516² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33642640513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11127381 + ... + 11130403.

It is an arithmetic number, because the mean of its divisors is an integer number (2456863920).

Almost surely, 2^33642640516 is an apocalyptic number.

It is an amenable number.

33642640516 is a deficient number, since it is larger than the sum of its proper divisors (25322093564).

33642640516 is a wasteful number, since it uses less digits than its factorization.

33642640516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363 (or 6361 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 33642640516 in words is "thirty-three billion, six hundred forty-two million, six hundred forty thousand, five hundred sixteen".