20035537655 has 16 divisors (see below), whose sum is σ = 27494484480. Its totient is φ = 13730066592.

The previous prime is 20035537619. The next prime is 20035537681. The reversal of 20035537655 is 55673553002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20035537655 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121865 + ... + 234354.

It is an arithmetic number, because the mean of its divisors is an integer number (1718405280).

Almost surely, 2^20035537655 is an apocalyptic number.

20035537655 is a deficient number, since it is larger than the sum of its proper divisors (7458946825).

20035537655 is a wasteful number, since it uses less digits than its factorization.

20035537655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357838.

The product of its (nonzero) digits is 472500, while the sum is 41.

The spelling of 20035537655 in words is "twenty billion, thirty-five million, five hundred thirty-seven thousand, six hundred fifty-five".