15120202445 has 16 divisors (see below), whose sum is σ = 18961240320. Its totient is φ = 11563468224.

The previous prime is 15120202423. The next prime is 15120202457. The reversal of 15120202445 is 54420202151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15120202445 is a prime.

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, 738050 + ... + 758259.

It is an arithmetic number, because the mean of its divisors is an integer number (1185077520).

Almost surely, 2^15120202445 is an apocalyptic number.

It is an amenable number.

15120202445 is a deficient number, since it is larger than the sum of its proper divisors (3841037875).

15120202445 is a wasteful number, since it uses less digits than its factorization.

15120202445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496404.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 15120202445 its reverse (54420202151), we get a palindrome (69540404596).

The spelling of 15120202445 in words is "fifteen billion, one hundred twenty million, two hundred two thousand, four hundred forty-five".