1406156106655 has 4 divisors (see below), whose sum is σ = 1687387327992. Its totient is φ = 1124924885320.

The previous prime is 1406156106631. The next prime is 1406156106697. The reversal of 1406156106655 is 5566016516041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1406156106655 - 2²³ = 1406147718047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140615610661 + ... + 140615610670.

It is an arithmetic number, because the mean of its divisors is an integer number (421846831998).

Almost surely, 2^{1406156106655} is an apocalyptic number.

1406156106655 is a deficient number, since it is larger than the sum of its proper divisors (281231221337).

1406156106655 is an equidigital number, since it uses as much as digits as its factorization.

1406156106655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281231221336.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 1406156106655 in words is "one trillion, four hundred six billion, one hundred fifty-six million, one hundred six thousand, six hundred fifty-five".