1156166045 has 8 divisors (see below), whose sum is σ = 1397990880. Its totient is φ = 917871760.

The previous prime is 1156166041. The next prime is 1156166071. The reversal of 1156166045 is 5406616511.

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

It is not a de Polignac number, because 1156166045 - 2² = 1156166041 is a prime.

It is a super-2 number, since 2×1156166045² = 2673439847221884050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1156165996 and 1156166014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156166041) 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, 881915 + ... + 883224.

It is an arithmetic number, because the mean of its divisors is an integer number (174748860).

Almost surely, 2^1156166045 is an apocalyptic number.

It is an amenable number.

1156166045 is a deficient number, since it is larger than the sum of its proper divisors (241824835).

1156166045 is a wasteful number, since it uses less digits than its factorization.

1156166045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765275.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1156166045 is about 34002.4417505567. The cubic root of 1156166045 is about 1049.5587094976.

The spelling of 1156166045 in words is "one billion, one hundred fifty-six million, one hundred sixty-six thousand, forty-five".