15551006011 has 2 divisors, whose sum is σ = 15551006012. Its totient is φ = 15551006010.

The previous prime is 15551005979. The next prime is 15551006021. The reversal of 15551006011 is 11060015551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15551006011 - 2⁵ = 15551005979 is a prime.

It is not a weakly prime, because it can be changed into another prime (15551006021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7775503005 + 7775503006.

It is an arithmetic number, because the mean of its divisors is an integer number (7775503006).

Almost surely, 2^15551006011 is an apocalyptic number.

15551006011 is a deficient number, since it is larger than the sum of its proper divisors (1).

15551006011 is an equidigital number, since it uses as much as digits as its factorization.

15551006011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 15551006011 in words is "fifteen billion, five hundred fifty-one million, six thousand, eleven".