15500245061 has 16 divisors (see below), whose sum is σ = 18342441600. Its totient is φ = 12815869248.

The previous prime is 15500245043. The next prime is 15500245063. The reversal of 15500245061 is 16054200551.

It is a happy number.

It is not a de Polignac number, because 15500245061 - 2¹⁴ = 15500228677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15500245063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186950 + ... + 256808.

It is an arithmetic number, because the mean of its divisors is an integer number (1146402600).

Almost surely, 2^15500245061 is an apocalyptic number.

It is an amenable number.

15500245061 is a deficient number, since it is larger than the sum of its proper divisors (2842196539).

15500245061 is a wasteful number, since it uses less digits than its factorization.

15500245061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70988.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 15500245061 in words is "fifteen billion, five hundred million, two hundred forty-five thousand, sixty-one".