1406656005331 has 16 divisors (see below), whose sum is σ = 1450447833600. Its totient is φ = 1363538449728.

The previous prime is 1406656005269. The next prime is 1406656005367. The reversal of 1406656005331 is 1335006566041.

It is a cyclic number.

It is not a de Polignac number, because 1406656005331 - 2⁷ = 1406656005203 is a prime.

It is a super-2 number, since 2×1406656005331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1406656005431) 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, 18598650 + ... + 18674128.

It is an arithmetic number, because the mean of its divisors is an integer number (90652989600).

Almost surely, 2^{1406656005331} is an apocalyptic number.

1406656005331 is a deficient number, since it is larger than the sum of its proper divisors (43791828269).

1406656005331 is an equidigital number, since it uses as much as digits as its factorization.

1406656005331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79938.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 1406656005331 in words is "one trillion, four hundred six billion, six hundred fifty-six million, five thousand, three hundred thirty-one".