1401501251265 has 16 divisors (see below), whose sum is σ = 2294550886848. Its totient is φ = 730084372416.

The previous prime is 1401501251261. The next prime is 1401501251281. The reversal of 1401501251265 is 5621521051041.

It is a happy number.

It is not a de Polignac number, because 1401501251265 - 2² = 1401501251261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401501251261) 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, 1086434434 + ... + 1086435723.

It is an arithmetic number, because the mean of its divisors is an integer number (143409430428).

Almost surely, 2^{1401501251265} is an apocalyptic number.

1401501251265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401501251265 is a deficient number, since it is larger than the sum of its proper divisors (893049635583).

1401501251265 is a wasteful number, since it uses less digits than its factorization.

1401501251265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172870208.

The product of its (nonzero) digits is 12000, while the sum is 33.

The spelling of 1401501251265 in words is "one trillion, four hundred one billion, five hundred one million, two hundred fifty-one thousand, two hundred sixty-five".