3556156890 has 64 divisors (see below), whose sum is σ = 10026882432. Its totient is φ = 795782400.

The previous prime is 3556156873. The next prime is 3556156897. The reversal of 3556156890 is 986516553.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3556156897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410181 + ... + 418760.

It is an arithmetic number, because the mean of its divisors is an integer number (156670038).

Almost surely, 2^3556156890 is an apocalyptic number.

3556156890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3556156890 is an abundant number, since it is smaller than the sum of its proper divisors (6470725542).

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

3556156890 is a wasteful number, since it uses less digits than its factorization.

3556156890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828975.

The product of its (nonzero) digits is 972000, while the sum is 48.

The square root of 3556156890 is about 59633.5215294217. The cubic root of 3556156890 is about 1526.3716964003.

The spelling of 3556156890 in words is "three billion, five hundred fifty-six million, one hundred fifty-six thousand, eight hundred ninety".