29890665077916 has 72 divisors (see below), whose sum is σ = 74090761996720. Its totient is φ = 9377222473728.

The previous prime is 29890665077891. The next prime is 29890665077981. The reversal of 29890665077916 is 61977056609892.

It is a super-2 number, since 2×29890665077916² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174455346 + ... + 174626598.

Almost surely, 2^{29890665077916} is an apocalyptic number.

It is an amenable number.

29890665077916 is an abundant number, since it is smaller than the sum of its proper divisors (44200096918804).

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

29890665077916 is a wasteful number, since it uses less digits than its factorization.

29890665077916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221623 (or 221604 counting only the distinct ones).

The product of its (nonzero) digits is 617258880, while the sum is 75.

The spelling of 29890665077916 in words is "twenty-nine trillion, eight hundred ninety billion, six hundred sixty-five million, seventy-seven thousand, nine hundred sixteen".