15251011061 has 12 divisors (see below), whose sum is σ = 18015720480. Its totient is φ = 12798049680.

The previous prime is 15251011037. The next prime is 15251011073. The reversal of 15251011061 is 16011015251.

It is not a de Polignac number, because 15251011061 - 2⁶ = 15251010997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15251011021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4100081 + ... + 4103798.

It is an arithmetic number, because the mean of its divisors is an integer number (1501310040).

Almost surely, 2^15251011061 is an apocalyptic number.

15251011061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15251011061 is a deficient number, since it is larger than the sum of its proper divisors (2764709419).

15251011061 is a wasteful number, since it uses less digits than its factorization.

15251011061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8203916 (or 8203903 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 23.

The spelling of 15251011061 in words is "fifteen billion, two hundred fifty-one million, eleven thousand, sixty-one".