4640157157658 has 16 divisors (see below), whose sum is σ = 7617399192000. Its totient is φ = 2102380468800.

The previous prime is 4640157157651. The next prime is 4640157157711. The reversal of 4640157157658 is 8567517510464.

It is a junction number, because it is equal to n+sod(n) for n = 4640157157597 and 4640157157606.

It is not an unprimeable number, because it can be changed into a prime (4640157157651) 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, 339086783 + ... + 339100466.

It is an arithmetic number, because the mean of its divisors is an integer number (476087449500).

Almost surely, 2^{4640157157658} is an apocalyptic number.

4640157157658 is a deficient number, since it is larger than the sum of its proper divisors (2977242034342).

4640157157658 is a wasteful number, since it uses less digits than its factorization.

4640157157658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678187573.

The product of its (nonzero) digits is 28224000, while the sum is 59.

The spelling of 4640157157658 in words is "four trillion, six hundred forty billion, one hundred fifty-seven million, one hundred fifty-seven thousand, six hundred fifty-eight".