1542664662451 has 6 divisors (see below), whose sum is σ = 1695656199356. Its totient is φ = 1402422420300.

The previous prime is 1542664662433. The next prime is 1542664662521.

1542664662451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1542664662451 - 2²⁹ = 1542127791539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542664662401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6374647245 + ... + 6374647486.

Almost surely, 2^{1542664662451} is an apocalyptic number.

1542664662451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1542664662451 is a deficient number, since it is larger than the sum of its proper divisors (152991536905).

1542664662451 is a wasteful number, since it uses less digits than its factorization.

1542664662451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12749294753 (or 12749294742 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 52.

The spelling of 1542664662451 in words is "one trillion, five hundred forty-two billion, six hundred sixty-four million, six hundred sixty-two thousand, four hundred fifty-one".