1065251212623 has 24 divisors (see below), whose sum is σ = 1657096328160. Its totient is φ = 655523824320.

The previous prime is 1065251212607. The next prime is 1065251212679. The reversal of 1065251212623 is 3262121525601.

1065251212623 is a `hidden beast` number, since 1 + 0 + 6 + 5 + 2 + 5 + 1 + 21 + 2 + 623 = 666.

It is not a de Polignac number, because 1065251212623 - 2⁴ = 1065251212607 is a prime.

It is a super-2 number, since 2×1065251212623² (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 (1065251212603) 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, 6800878 + ... + 6955748.

It is an arithmetic number, because the mean of its divisors is an integer number (69045680340).

Almost surely, 2^{1065251212623} is an apocalyptic number.

1065251212623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1065251212623 is a deficient number, since it is larger than the sum of its proper divisors (591845115537).

1065251212623 is a wasteful number, since it uses less digits than its factorization.

1065251212623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213679 (or 213676 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 1065251212623 in words is "one trillion, sixty-five billion, two hundred fifty-one million, two hundred twelve thousand, six hundred twenty-three".