651116640503 has 8 divisors (see below), whose sum is σ = 747382795680. Its totient is φ = 555662858400.

The previous prime is 651116640497. The next prime is 651116640509. The reversal of 651116640503 is 305046611156.

It is an interprime number because it is at equal distance from previous prime (651116640497) and next prime (651116640509).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 651116640503 - 2⁶ = 651116640439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651116640509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203091548 + ... + 203094753.

It is an arithmetic number, because the mean of its divisors is an integer number (93422849460).

Almost surely, 2^651116640503 is an apocalyptic number.

651116640503 is a deficient number, since it is larger than the sum of its proper divisors (96266155177).

651116640503 is a wasteful number, since it uses less digits than its factorization.

651116640503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406186537.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 651116640503 in words is "six hundred fifty-one billion, one hundred sixteen million, six hundred forty thousand, five hundred three".