5071661001 has 24 divisors (see below), whose sum is σ = 8142503616. Its totient is φ = 3015735840.

The previous prime is 5071660933. The next prime is 5071661029. The reversal of 5071661001 is 1001661705.

It is not a de Polignac number, because 5071661001 - 2³¹ = 2924177353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5071661081) 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, 478045 + ... + 488538.

It is an arithmetic number, because the mean of its divisors is an integer number (339270984).

Almost surely, 2^5071661001 is an apocalyptic number.

It is an amenable number.

5071661001 is a deficient number, since it is larger than the sum of its proper divisors (3070842615).

5071661001 is a wasteful number, since it uses less digits than its factorization.

5071661001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966653 (or 966650 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 5071661001 is about 71215.5952091956. The cubic root of 5071661001 is about 1718.1064659679.

The spelling of 5071661001 in words is "five billion, seventy-one million, six hundred sixty-one thousand, one".