15040451011 has 4 divisors (see below), whose sum is σ = 15040924624. Its totient is φ = 15039977400.

The previous prime is 15040450969. The next prime is 15040451017. The reversal of 15040451011 is 11015404051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15040451011 - 2¹⁷ = 15040319939 is a prime.

It is a super-2 number, since 2×15040451011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15040451017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185460 + ... + 253921.

It is an arithmetic number, because the mean of its divisors is an integer number (3760231156).

Almost surely, 2^15040451011 is an apocalyptic number.

15040451011 is a deficient number, since it is larger than the sum of its proper divisors (473613).

15040451011 is an equidigital number, since it uses as much as digits as its factorization.

15040451011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473612.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 15040451011 its reverse (11015404051), we get a palindrome (26055855062).

The spelling of 15040451011 in words is "fifteen billion, forty million, four hundred fifty-one thousand, eleven".