38977763837166 has 384 divisors, whose sum is σ = 110425949921280. Its totient is φ = 9974537717760.

The previous prime is 38977763837161. The next prime is 38977763837167. The reversal of 38977763837166 is 66173836777983.

38977763837166 is a `hidden beast` number, since 3 + 8 + 9 + 7 + 7 + 76 + 383 + 7 + 166 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38977763837161) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 989338980 + ... + 989378376.

It is an arithmetic number, because the mean of its divisors is an integer number (287567577920).

Almost surely, 2^{38977763837166} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38977763837166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55212974960640).

38977763837166 is an abundant number, since it is smaller than the sum of its proper divisors (71448186084114).

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

38977763837166 is a wasteful number, since it uses less digits than its factorization.

38977763837166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39757 (or 39740 counting only the distinct ones).

The product of its digits is 8065516032, while the sum is 81.

The spelling of 38977763837166 in words is "thirty-eight trillion, nine hundred seventy-seven billion, seven hundred sixty-three million, eight hundred thirty-seven thousand, one hundred sixty-six".