1166424551 has 4 divisors (see below), whose sum is σ = 1167439104. Its totient is φ = 1165410000.

The previous prime is 1166424547. The next prime is 1166424557. The reversal of 1166424551 is 1554246611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1166424551 - 2² = 1166424547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166424557) 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, 505550 + ... + 507851.

It is an arithmetic number, because the mean of its divisors is an integer number (291859776).

Almost surely, 2^1166424551 is an apocalyptic number.

1166424551 is a deficient number, since it is larger than the sum of its proper divisors (1014553).

1166424551 is a wasteful number, since it uses less digits than its factorization.

1166424551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014552.

The product of its digits is 28800, while the sum is 35.

The square root of 1166424551 is about 34152.9581588477. The cubic root of 1166424551 is about 1052.6537712562.

The spelling of 1166424551 in words is "one billion, one hundred sixty-six million, four hundred twenty-four thousand, five hundred fifty-one".