516157638 has 64 divisors (see below), whose sum is σ = 1127934720. Its totient is φ = 156828672.

The previous prime is 516157633. The next prime is 516157679. The reversal of 516157638 is 836751615.

It is a self number, because there is not a number n which added to its sum of digits gives 516157638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516157633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 600453 + ... + 601311.

It is an arithmetic number, because the mean of its divisors is an integer number (17623980).

Almost surely, 2^516157638 is an apocalyptic number.

516157638 is an abundant number, since it is smaller than the sum of its proper divisors (611777082).

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

516157638 is a wasteful number, since it uses less digits than its factorization.

516157638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its digits is 151200, while the sum is 42.

The square root of 516157638 is about 22719.1029312339. The cubic root of 516157638 is about 802.1596013649.

The spelling of 516157638 in words is "five hundred sixteen million, one hundred fifty-seven thousand, six hundred thirty-eight".