1005651551139 has 8 divisors (see below), whose sum is σ = 1340873367120. Its totient is φ = 670432051296.

The previous prime is 1005651551129. The next prime is 1005651551153. The reversal of 1005651551139 is 9311551565001.

It is a happy number.

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

It is not a de Polignac number, because 1005651551139 - 2¹⁹ = 1005651026851 is a prime.

It is a super-2 number, since 2×1005651551139² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005651551139.

It is not an unprimeable number, because it can be changed into a prime (1005651551119) 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, 1420017 + ... + 2006925.

It is an arithmetic number, because the mean of its divisors is an integer number (167609170890).

Almost surely, 2^{1005651551139} is an apocalyptic number.

1005651551139 is a deficient number, since it is larger than the sum of its proper divisors (335221815981).

1005651551139 is an equidigital number, since it uses as much as digits as its factorization.

1005651551139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158069.

The product of its (nonzero) digits is 101250, while the sum is 42.

The spelling of 1005651551139 in words is "one trillion, five billion, six hundred fifty-one million, five hundred fifty-one thousand, one hundred thirty-nine".