1345266025501 has 4 divisors (see below), whose sum is σ = 1376551281952. Its totient is φ = 1313980769052.

The previous prime is 1345266025463. The next prime is 1345266025549. The reversal of 1345266025501 is 1055206625431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345266025501 - 2³³ = 1336676090909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345266022501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15642628161 + ... + 15642628246.

It is an arithmetic number, because the mean of its divisors is an integer number (344137820488).

Almost surely, 2^{1345266025501} is an apocalyptic number.

It is an amenable number.

1345266025501 is a deficient number, since it is larger than the sum of its proper divisors (31285256451).

1345266025501 is an equidigital number, since it uses as much as digits as its factorization.

1345266025501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31285256450.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 1345266025501 in words is "one trillion, three hundred forty-five billion, two hundred sixty-six million, twenty-five thousand, five hundred one".