5515051001666 has 8 divisors (see below), whose sum is σ = 8272599643200. Its totient is φ = 2757517787268.

The previous prime is 5515051001627. The next prime is 5515051001737. The reversal of 5515051001666 is 6661001505155.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917286 + ... + 4420481.

It is an arithmetic number, because the mean of its divisors is an integer number (1034074955400).

Almost surely, 2^{5515051001666} is an apocalyptic number.

5515051001666 is a deficient number, since it is larger than the sum of its proper divisors (2757548641534).

5515051001666 is a wasteful number, since it uses less digits than its factorization.

5515051001666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7713568.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 5515051001666 in words is "five trillion, five hundred fifteen billion, fifty-one million, one thousand, six hundred sixty-six".