15201045545 has 16 divisors (see below), whose sum is σ = 20872335360. Its totient is φ = 10410980544.

The previous prime is 15201045527. The next prime is 15201045557. The reversal of 15201045545 is 54554010251.

It is a cyclic number.

It is not a de Polignac number, because 15201045545 - 2⁸ = 15201045289 is a prime.

It is a super-2 number, since 2×15201045545² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 232937 + ... + 290966.

It is an arithmetic number, because the mean of its divisors is an integer number (1304520960).

Almost surely, 2^15201045545 is an apocalyptic number.

It is an amenable number.

15201045545 is a deficient number, since it is larger than the sum of its proper divisors (5671289815).

15201045545 is an equidigital number, since it uses as much as digits as its factorization.

15201045545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524744.

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 15201045545 its reverse (54554010251), we get a palindrome (69755055796).

The spelling of 15201045545 in words is "fifteen billion, two hundred one million, forty-five thousand, five hundred forty-five".