1955116653 has 16 divisors (see below), whose sum is σ = 2979884160. Its totient is φ = 1116962496.

The previous prime is 1955116591. The next prime is 1955116661. The reversal of 1955116653 is 3566115591.

It is not a de Polignac number, because 1955116653 - 2⁶ = 1955116589 is a prime.

It is a super-3 number, since 3×1955116653³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955115653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133951 + ... + 147827.

It is an arithmetic number, because the mean of its divisors is an integer number (186242760).

Almost surely, 2^1955116653 is an apocalyptic number.

It is an amenable number.

1955116653 is a deficient number, since it is larger than the sum of its proper divisors (1024767507).

1955116653 is a wasteful number, since it uses less digits than its factorization.

1955116653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20596.

The product of its digits is 121500, while the sum is 42.

The square root of 1955116653 is about 44216.7010641907. The cubic root of 1955116653 is about 1250.4247416326.

The spelling of 1955116653 in words is "one billion, nine hundred fifty-five million, one hundred sixteen thousand, six hundred fifty-three".