1355669401251 has 16 divisors (see below), whose sum is σ = 1980133332480. Its totient is φ = 818180082720.

The previous prime is 1355669401243. The next prime is 1355669401291. The reversal of 1355669401251 is 1521049665531.

It is not a de Polignac number, because 1355669401251 - 2³ = 1355669401243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1355669401251.

It is not an unprimeable number, because it can be changed into a prime (1355669401201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85935400 + ... + 85951173.

It is an arithmetic number, because the mean of its divisors is an integer number (123758333280).

Almost surely, 2^{1355669401251} is an apocalyptic number.

1355669401251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1355669401251 is a deficient number, since it is larger than the sum of its proper divisors (624463931229).

1355669401251 is a wasteful number, since it uses less digits than its factorization.

1355669401251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171886826.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 1355669401251 in words is "one trillion, three hundred fifty-five billion, six hundred sixty-nine million, four hundred one thousand, two hundred fifty-one".