2661335153434 has 4 divisors (see below), whose sum is σ = 3992002730154. Its totient is φ = 1330667576716.

The previous prime is 2661335153429. The next prime is 2661335153453. The reversal of 2661335153434 is 4343515331662.

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

It can be written as a sum of positive squares in only one way, i.e., 2113979326209 + 547355827225 = 1453953^2 + 739835^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665333788357 + ... + 665333788360.

Almost surely, 2^{2661335153434} is an apocalyptic number.

2661335153434 is a deficient number, since it is larger than the sum of its proper divisors (1330667576720).

2661335153434 is a wasteful number, since it uses less digits than its factorization.

2661335153434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330667576719.

The product of its digits is 2332800, while the sum is 46.

The spelling of 2661335153434 in words is "two trillion, six hundred sixty-one billion, three hundred thirty-five million, one hundred fifty-three thousand, four hundred thirty-four".