1461653616 has 40 divisors (see below), whose sum is σ = 3783507840. Its totient is φ = 486241216.

The previous prime is 1461653597. The next prime is 1461653617. The reversal of 1461653616 is 6163561641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461653617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6126 + ... + 54413.

It is an arithmetic number, because the mean of its divisors is an integer number (94587696).

Almost surely, 2^1461653616 is an apocalyptic number.

1461653616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1461653616 is an abundant number, since it is smaller than the sum of its proper divisors (2321854224).

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

1461653616 is a wasteful number, since it uses less digits than its factorization.

1461653616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61053 (or 61047 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 1461653616 is about 38231.5787798516. The cubic root of 1461653616 is about 1134.8753292525.

The spelling of 1461653616 in words is "one billion, four hundred sixty-one million, six hundred fifty-three thousand, six hundred sixteen".