1551515616051 has 8 divisors (see below), whose sum is σ = 2069225243904. Its totient is φ = 1034074866120.

The previous prime is 1551515615981. The next prime is 1551515616073. The reversal of 1551515616051 is 1506165151551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1551515616051 - 2¹¹ = 1551515614003 is a prime.

It is a super-2 number, since 2×1551515616051² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1551515615994 and 1551515616012.

It is not an unprimeable number, because it can be changed into a prime (1551515616151) 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, 67206015 + ... + 67229096.

It is an arithmetic number, because the mean of its divisors is an integer number (258653155488).

Almost surely, 2^{1551515616051} is an apocalyptic number.

1551515616051 is a deficient number, since it is larger than the sum of its proper divisors (517709627853).

1551515616051 is a wasteful number, since it uses less digits than its factorization.

1551515616051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134438961.

The product of its (nonzero) digits is 112500, while the sum is 42.

The spelling of 1551515616051 in words is "one trillion, five hundred fifty-one billion, five hundred fifteen million, six hundred sixteen thousand, fifty-one".