4004555053551 has 16 divisors (see below), whose sum is σ = 5763853818240. Its totient is φ = 2458460077920.

The previous prime is 4004555053547. The next prime is 4004555053573. The reversal of 4004555053551 is 1553505554004.

It is a happy number.

It is not a de Polignac number, because 4004555053551 - 2² = 4004555053547 is a prime.

It is a super-2 number, since 2×4004555053551² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004555053591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122514565 + ... + 122547246.

It is an arithmetic number, because the mean of its divisors is an integer number (360240863640).

Almost surely, 2^{4004555053551} is an apocalyptic number.

4004555053551 is a deficient number, since it is larger than the sum of its proper divisors (1759298764689).

4004555053551 is a wasteful number, since it uses less digits than its factorization.

4004555053551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245062246.

The product of its (nonzero) digits is 750000, while the sum is 42.

The spelling of 4004555053551 in words is "four trillion, four billion, five hundred fifty-five million, fifty-three thousand, five hundred fifty-one".