1535432006644 has 12 divisors (see below), whose sum is σ = 2828427380800. Its totient is φ = 727309897848.

The previous prime is 1535432006629. The next prime is 1535432006729. The reversal of 1535432006644 is 4466002345351.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1535432006644.

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, 10101526284 + ... + 10101526435.

Almost surely, 2^{1535432006644} is an apocalyptic number.

It is an amenable number.

1535432006644 is a deficient number, since it is larger than the sum of its proper divisors (1292995374156).

1535432006644 is a wasteful number, since it uses less digits than its factorization.

1535432006644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20203052742 (or 20203052740 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 1535432006644 in words is "one trillion, five hundred thirty-five billion, four hundred thirty-two million, six thousand, six hundred forty-four".