20157115702 has 16 divisors (see below), whose sum is σ = 30401491680. Its totient is φ = 10023316992.

The previous prime is 20157115673. The next prime is 20157115717. The reversal of 20157115702 is 20751175102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831488 + ... + 1842460.

It is an arithmetic number, because the mean of its divisors is an integer number (1900093230).

Almost surely, 2^20157115702 is an apocalyptic number.

20157115702 is a deficient number, since it is larger than the sum of its proper divisors (10244375978).

20157115702 is a wasteful number, since it uses less digits than its factorization.

20157115702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15927.

The product of its (nonzero) digits is 4900, while the sum is 31.

The spelling of 20157115702 in words is "twenty billion, one hundred fifty-seven million, one hundred fifteen thousand, seven hundred two".