1146661020 has 72 divisors (see below), whose sum is σ = 3661279440. Its totient is φ = 289681920.

The previous prime is 1146661003. The next prime is 1146661027. The reversal of 1146661020 is 201666411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146661027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164221 + ... + 171060.

Almost surely, 2^1146661020 is an apocalyptic number.

1146661020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1146661020 is an abundant number, since it is smaller than the sum of its proper divisors (2514618420).

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

1146661020 is a wasteful number, since it uses less digits than its factorization.

1146661020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335315 (or 335310 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1146661020 is about 33862.3835546171. The cubic root of 1146661020 is about 1046.6745950328.

The spelling of 1146661020 in words is "one billion, one hundred forty-six million, six hundred sixty-one thousand, twenty".