1556156160 has 216 divisors, whose sum is σ = 5798860704. Its totient is φ = 383016960.

The previous prime is 1556156131. The next prime is 1556156167. The reversal of 1556156160 is 616516551.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556156167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144565 + ... + 154955.

Almost surely, 2^1556156160 is an apocalyptic number.

1556156160 is a gapful number since it is divisible by the number (10) 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 1556156160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899430352).

1556156160 is an abundant number, since it is smaller than the sum of its proper divisors (4242704544).

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

1556156160 is a wasteful number, since it uses less digits than its factorization.

1556156160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10431 (or 10414 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 1556156160 is about 39448.1452035454. The cubic root of 1556156160 is about 1158.8246517539.

The spelling of 1556156160 in words is "one billion, five hundred fifty-six million, one hundred fifty-six thousand, one hundred sixty".