1148572656 has 480 divisors, whose sum is σ = 4295836160. Its totient is φ = 287400960.

The previous prime is 1148572639. The next prime is 1148572669. The reversal of 1148572656 is 6562758411.

1148572656 is a `hidden beast` number, since 1 + 14 + 8 + 572 + 65 + 6 = 666.

It is a super-2 number, since 2×1148572656² = 2638438292221788672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15733836 + ... + 15733908.

Almost surely, 2^1148572656 is an apocalyptic number.

1148572656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148572656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2147918080).

1148572656 is an abundant number, since it is smaller than the sum of its proper divisors (3147263504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1148572656 is a wasteful number, since it uses less digits than its factorization.

1148572656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 139 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 1148572656 is about 33890.5983423132. The cubic root of 1148572656 is about 1047.2559205597.

The spelling of 1148572656 in words is "one billion, one hundred forty-eight million, five hundred seventy-two thousand, six hundred fifty-six".