1234265616540 has 72 divisors (see below), whose sum is σ = 4084297137648. Its totient is φ = 299215906560.

The previous prime is 1234265616473. The next prime is 1234265616547. The reversal of 1234265616540 is 456165624321.

1234265616540 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 26 + 5 + 616 + 5 + 4 + 0 = 666.

It is a super-2 number, since 2×1234265616540² (a number of 25 digits) contains 22 as substring.

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 (1234265616547) 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, 311681257 + ... + 311685216.

It is an arithmetic number, because the mean of its divisors is an integer number (56726349134).

Almost surely, 2^{1234265616540} is an apocalyptic number.

1234265616540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1234265616540 is an abundant number, since it is smaller than the sum of its proper divisors (2850031521108).

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

1234265616540 is a wasteful number, since it uses less digits than its factorization.

1234265616540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623366499 (or 623366494 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 1234265616540 in words is "one trillion, two hundred thirty-four billion, two hundred sixty-five million, six hundred sixteen thousand, five hundred forty".