1406155202642 has 16 divisors (see below), whose sum is σ = 2166324615000. Its totient is φ = 684048498048.

The previous prime is 1406155202633. The next prime is 1406155202671. The reversal of 1406155202642 is 2462025516041.

It can be written as a sum of positive squares in 4 ways, for example, as 1199092890961 + 207062311681 = 1095031^2 + 455041^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1406155202596 and 1406155202605.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1580468 + ... + 2304384.

Almost surely, 2^{1406155202642} is an apocalyptic number.

1406155202642 is a deficient number, since it is larger than the sum of its proper divisors (760169412358).

1406155202642 is a wasteful number, since it uses less digits than its factorization.

1406155202642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750205.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 1406155202642 in words is "one trillion, four hundred six billion, one hundred fifty-five million, two hundred two thousand, six hundred forty-two".