29668661154 has 64 divisors (see below), whose sum is σ = 76154878080. Its totient is φ = 8461647360.

The previous prime is 29668661129. The next prime is 29668661179. The reversal of 29668661154 is 45116686692.

It is an interprime number because it is at equal distance from previous prime (29668661129) and next prime (29668661179).

It is a super-2 number, since 2×29668661154² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 29668661154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1458939 + ... + 1479134.

It is an arithmetic number, because the mean of its divisors is an integer number (1189919970).

Almost surely, 2^29668661154 is an apocalyptic number.

29668661154 is an abundant number, since it is smaller than the sum of its proper divisors (46486216926).

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

29668661154 is a wasteful number, since it uses less digits than its factorization.

29668661154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938112 (or 2938106 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 29668661154 in words is "twenty-nine billion, six hundred sixty-eight million, six hundred sixty-one thousand, one hundred fifty-four".