1420256136516 has 24 divisors (see below), whose sum is σ = 3787349697600. Its totient is φ = 405787467552.

The previous prime is 1420256136479. The next prime is 1420256136517. The reversal of 1420256136516 is 6156316520241.

It is a super-2 number, since 2×1420256136516² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1420256136517) 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, 8453905491 + ... + 8453905658.

It is an arithmetic number, because the mean of its divisors is an integer number (157806237400).

Almost surely, 2^{1420256136516} is an apocalyptic number.

It is an amenable number.

1420256136516 is an abundant number, since it is smaller than the sum of its proper divisors (2367093561084).

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

1420256136516 is a wasteful number, since it uses less digits than its factorization.

1420256136516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16907811163 (or 16907811161 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 1420256136516 in words is "one trillion, four hundred twenty billion, two hundred fifty-six million, one hundred thirty-six thousand, five hundred sixteen".