116556601 has 4 divisors (see below), whose sum is σ = 133207552. Its totient is φ = 99905652.

The previous prime is 116556599. The next prime is 116556613. The reversal of 116556601 is 106655611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106655611 = 971 ⋅109841.

It is not a de Polignac number, because 116556601 - 2¹ = 116556599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116550601) 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, 8325465 + ... + 8325478.

It is an arithmetic number, because the mean of its divisors is an integer number (33301888).

Almost surely, 2^116556601 is an apocalyptic number.

It is an amenable number.

116556601 is a deficient number, since it is larger than the sum of its proper divisors (16650951).

116556601 is an equidigital number, since it uses as much as digits as its factorization.

116556601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16650950.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 116556601 is about 10796.1382447614. The cubic root of 116556601 is about 488.4786927510.

The spelling of 116556601 in words is "one hundred sixteen million, five hundred fifty-six thousand, six hundred one".