1065120662551 has 8 divisors (see below), whose sum is σ = 1164983629824. Its totient is φ = 965763331320.

The previous prime is 1065120662533. The next prime is 1065120662603. The reversal of 1065120662551 is 1552660215601.

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

It is a cyclic number.

It is not a de Polignac number, because 1065120662551 - 2¹⁹ = 1065120138263 is a prime.

It is a super-2 number, since 2×1065120662551² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065120662531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126404601 + ... + 126413026.

It is an arithmetic number, because the mean of its divisors is an integer number (145622953728).

Almost surely, 2^{1065120662551} is an apocalyptic number.

1065120662551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1065120662551 is a deficient number, since it is larger than the sum of its proper divisors (99862967273).

1065120662551 is a wasteful number, since it uses less digits than its factorization.

1065120662551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252818021.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 1065120662551 in words is "one trillion, sixty-five billion, one hundred twenty million, six hundred sixty-two thousand, five hundred fifty-one".