1115015510661 has 8 divisors (see below), whose sum is σ = 1601047912800. Its totient is φ = 686163391152.

The previous prime is 1115015510657. The next prime is 1115015510671. The reversal of 1115015510661 is 1660155105111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1115015510661 - 2² = 1115015510657 is a prime.

It is a super-2 number, since 2×1115015510661² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115015510671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14295070611 + ... + 14295070688.

It is an arithmetic number, because the mean of its divisors is an integer number (200130989100).

Almost surely, 2^{1115015510661} is an apocalyptic number.

It is an amenable number.

1115015510661 is a deficient number, since it is larger than the sum of its proper divisors (486032402139).

1115015510661 is a wasteful number, since it uses less digits than its factorization.

1115015510661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28590141315.

The product of its (nonzero) digits is 4500, while the sum is 33.

The spelling of 1115015510661 in words is "one trillion, one hundred fifteen billion, fifteen million, five hundred ten thousand, six hundred sixty-one".