634336632022155 has 64 divisors (see below), whose sum is σ = 1085088440936448. Its totient is φ = 315316621117440.

The previous prime is 634336632022153. The next prime is 634336632022229. The reversal of 634336632022155 is 551220236633436.

It is not a de Polignac number, because 634336632022155 - 2¹ = 634336632022153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 634336632022098 and 634336632022107.

It is not an unprimeable number, because it can be changed into a prime (634336632022153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3465338842 + ... + 3465521888.

It is an arithmetic number, because the mean of its divisors is an integer number (16954506889632).

Almost surely, 2^{634336632022155} is an apocalyptic number.

634336632022155 is a deficient number, since it is larger than the sum of its proper divisors (450751808914293).

634336632022155 is a wasteful number, since it uses less digits than its factorization.

634336632022155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315116.

The product of its (nonzero) digits is 13996800, while the sum is 51.

The spelling of 634336632022155 in words is "six hundred thirty-four trillion, three hundred thirty-six billion, six hundred thirty-two million, twenty-two thousand, one hundred fifty-five".