677553156 has 144 divisors (see below), whose sum is σ = 2092970880. Its totient is φ = 180403200.

The previous prime is 677553131. The next prime is 677553161. The reversal of 677553156 is 651355776.

677553156 is a `hidden beast` number, since 67 + 7 + 5 + 531 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466231 + ... + 467681.

It is an arithmetic number, because the mean of its divisors is an integer number (14534520).

Almost surely, 2^677553156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677553156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046485440).

677553156 is an abundant number, since it is smaller than the sum of its proper divisors (1415417724).

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

677553156 is a wasteful number, since it uses less digits than its factorization.

677553156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594 (or 1589 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 677553156 is about 26029.8512481343. The cubic root of 677553156 is about 878.3099259913.

The spelling of 677553156 in words is "six hundred seventy-seven million, five hundred fifty-three thousand, one hundred fifty-six".