1331525069642 has 16 divisors (see below), whose sum is σ = 2043769070112. Its totient is φ = 650269211760.

The previous prime is 1331525069573. The next prime is 1331525069731. The reversal of 1331525069642 is 2469605251331.

It is a super-2 number, since 2×1331525069642² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9972548 + ... + 10105184.

It is an arithmetic number, because the mean of its divisors is an integer number (127735566882).

Almost surely, 2^{1331525069642} is an apocalyptic number.

1331525069642 is a deficient number, since it is larger than the sum of its proper divisors (712244000470).

1331525069642 is a wasteful number, since it uses less digits than its factorization.

1331525069642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249413.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 1331525069642 in words is "one trillion, three hundred thirty-one billion, five hundred twenty-five million, sixty-nine thousand, six hundred forty-two".