1118149680 has 40 divisors (see below), whose sum is σ = 3466264752. Its totient is φ = 298173184.

The previous prime is 1118149673. The next prime is 1118149691. The reversal of 1118149680 is 869418111.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2329239 + ... + 2329718.

Almost surely, 2^1118149680 is an apocalyptic number.

1118149680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1118149680 is an abundant number, since it is smaller than the sum of its proper divisors (2348115072).

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

1118149680 is a wasteful number, since it uses less digits than its factorization.

1118149680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658973 (or 4658967 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 39.

The square root of 1118149680 is about 33438.7451917682. The cubic root of 1118149680 is about 1037.9266137358.

The spelling of 1118149680 in words is "one billion, one hundred eighteen million, one hundred forty-nine thousand, six hundred eighty".