1156666101 has 8 divisors (see below), whose sum is σ = 1543290144. Its totient is φ = 770576400.

The previous prime is 1156666087. The next prime is 1156666109. The reversal of 1156666101 is 1016666511.

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

It is not a de Polignac number, because 1156666101 - 2⁶ = 1156666037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156666109) 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, 128506 + ... + 137211.

It is an arithmetic number, because the mean of its divisors is an integer number (192911268).

Almost surely, 2^1156666101 is an apocalyptic number.

It is an amenable number.

1156666101 is a deficient number, since it is larger than the sum of its proper divisors (386624043).

1156666101 is a wasteful number, since it uses less digits than its factorization.

1156666101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267171.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1156666101 is about 34009.7941922617. The cubic root of 1156666101 is about 1049.7100033607.

The spelling of 1156666101 in words is "one billion, one hundred fifty-six million, six hundred sixty-six thousand, one hundred one".