1166420601 has 32 divisors (see below), whose sum is σ = 1791728640. Its totient is φ = 749174400.

The previous prime is 1166420587. The next prime is 1166420611. The reversal of 1166420601 is 1060246611.

1166420601 is a `hidden beast` number, since 1 + 16 + 6 + 42 + 0 + 601 = 666.

It is not a de Polignac number, because 1166420601 - 2¹⁹ = 1165896313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1166420611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192031 + ... + 198011.

It is an arithmetic number, because the mean of its divisors is an integer number (55991520).

Almost surely, 2^1166420601 is an apocalyptic number.

It is an amenable number.

1166420601 is a deficient number, since it is larger than the sum of its proper divisors (625308039).

1166420601 is a wasteful number, since it uses less digits than its factorization.

1166420601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254 (or 6248 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1166420601 is about 34152.9003307186. The cubic root of 1166420601 is about 1052.6525830133.

The spelling of 1166420601 in words is "one billion, one hundred sixty-six million, four hundred twenty thousand, six hundred one".