1406155065642 has 40 divisors (see below), whose sum is σ = 3217867874496. Its totient is φ = 458745621768.

The previous prime is 1406155065617. The next prime is 1406155065643. The reversal of 1406155065642 is 2465605516041.

1406155065642 is a `hidden beast` number, since 1 + 4 + 0 + 6 + 1 + 550 + 6 + 56 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (1406155065643) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92332488 + ... + 92347715.

Almost surely, 2^{1406155065642} is an apocalyptic number.

1406155065642 is an abundant number, since it is smaller than the sum of its proper divisors (1811712808854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1406155065642 is a wasteful number, since it uses less digits than its factorization.

1406155065642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184680264 (or 184680255 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 1406155065642 in words is "one trillion, four hundred six billion, one hundred fifty-five million, sixty-five thousand, six hundred forty-two".