15202140205 has 16 divisors (see below), whose sum is σ = 21159826560. Its totient is φ = 10268736192.

The previous prime is 15202140169. The next prime is 15202140229. The reversal of 15202140205 is 50204120251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15202140205 is a prime.

It is a super-2 number, since 2×15202140205² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3239050 + ... + 3243739.

It is an arithmetic number, because the mean of its divisors is an integer number (1322489160).

Almost surely, 2^15202140205 is an apocalyptic number.

It is an amenable number.

15202140205 is a deficient number, since it is larger than the sum of its proper divisors (5957686355).

15202140205 is an equidigital number, since it uses as much as digits as its factorization.

15202140205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6482868.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 15202140205 its reverse (50204120251), we get a palindrome (65406260456).

The spelling of 15202140205 in words is "fifteen billion, two hundred two million, one hundred forty thousand, two hundred five".