1015506050651 has 4 divisors (see below), whose sum is σ = 1015684748232. Its totient is φ = 1015327353072.

The previous prime is 1015506050621. The next prime is 1015506050681. The reversal of 1015506050651 is 1560506055101.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1015506050621) and next prime (1015506050681).

It is a cyclic number.

It is not a de Polignac number, because 1015506050651 - 2²⁶ = 1015438941787 is a prime.

It is a super-3 number, since 3×1015506050651³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1015506050621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89340266 + ... + 89351631.

It is an arithmetic number, because the mean of its divisors is an integer number (253921187058).

Almost surely, 2^{1015506050651} is an apocalyptic number.

1015506050651 is a deficient number, since it is larger than the sum of its proper divisors (178697581).

1015506050651 is an equidigital number, since it uses as much as digits as its factorization.

1015506050651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178697580.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 1015506050651 in words is "one trillion, fifteen billion, five hundred six million, fifty thousand, six hundred fifty-one".