63166545771 has 24 divisors (see below), whose sum is σ = 103735699920. Its totient is φ = 33971922432.

The previous prime is 63166545727. The next prime is 63166545787. The reversal of 63166545771 is 17754566136.

It is not a de Polignac number, because 63166545771 - 2¹¹ = 63166543723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (63166535771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12635866 + ... + 12640863.

It is an arithmetic number, because the mean of its divisors is an integer number (4322320830).

Almost surely, 2^63166545771 is an apocalyptic number.

63166545771 is a deficient number, since it is larger than the sum of its proper divisors (40569154149).

63166545771 is a wasteful number, since it uses less digits than its factorization.

63166545771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25276763 (or 25276756 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 51.

The spelling of 63166545771 in words is "sixty-three billion, one hundred sixty-six million, five hundred forty-five thousand, seven hundred seventy-one".