1201296618045 has 40 divisors (see below), whose sum is σ = 2153516259840. Its totient is φ = 640667478240.

The previous prime is 1201296618013. The next prime is 1201296618047. The reversal of 1201296618045 is 5408166921021.

1201296618045 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 29 + 6 + 618 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 1201296618045 - 2⁵ = 1201296618013 is a prime.

It is a super-3 number, since 3×1201296618045³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201296618047) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17834580 + ... + 17901810.

It is an arithmetic number, because the mean of its divisors is an integer number (53837906496).

Almost surely, 2^{1201296618045} is an apocalyptic number.

1201296618045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201296618045 is a deficient number, since it is larger than the sum of its proper divisors (952219641795).

1201296618045 is an equidigital number, since it uses as much as digits as its factorization.

1201296618045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111367 (or 111358 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 1201296618045 in words is "one trillion, two hundred one billion, two hundred ninety-six million, six hundred eighteen thousand, forty-five".