1415515351551 has 24 divisors (see below), whose sum is σ = 2214922367664. Its totient is φ = 801707800320.

The previous prime is 1415515351541. The next prime is 1415515351553. The reversal of 1415515351551 is 1551535155141.

It is not a de Polignac number, because 1415515351551 - 2¹⁵ = 1415515318783 is a prime.

It is a super-2 number, since 2×1415515351551² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1415515351553) 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, 42591160 + ... + 42624381.

It is an arithmetic number, because the mean of its divisors is an integer number (92288431986).

Almost surely, 2^{1415515351551} is an apocalyptic number.

1415515351551 is a deficient number, since it is larger than the sum of its proper divisors (799407016113).

1415515351551 is a wasteful number, since it uses less digits than its factorization.

1415515351551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85215671 (or 85215664 counting only the distinct ones).

The product of its digits is 187500, while the sum is 42.

The spelling of 1415515351551 in words is "one trillion, four hundred fifteen billion, five hundred fifteen million, three hundred fifty-one thousand, five hundred fifty-one".