29166157388280 has 128 divisors (see below), whose sum is σ = 97672713304320. Its totient is φ = 6906151418880.

The previous prime is 29166157388257. The next prime is 29166157388281. The reversal of 29166157388280 is 8288375166192.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29166157388281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256868517 + ... + 256982036.

It is an arithmetic number, because the mean of its divisors is an integer number (763068072690).

Almost surely, 2^{29166157388280} is an apocalyptic number.

29166157388280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29166157388280 is an abundant number, since it is smaller than the sum of its proper divisors (68506555916040).

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

29166157388280 is a wasteful number, since it uses less digits than its factorization.

29166157388280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513850621 (or 513850617 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 29166157388280 in words is "twenty-nine trillion, one hundred sixty-six billion, one hundred fifty-seven million, three hundred eighty-eight thousand, two hundred eighty".