6611858542802 has 4 divisors (see below), whose sum is σ = 9917787814206. Its totient is φ = 3305929271400.

The previous prime is 6611858542789. The next prime is 6611858542831. The reversal of 6611858542802 is 2082458581166.

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., 5216249455921 + 1395609086881 = 2283911^2 + 1181359^2 .

It is a super-2 number, since 2×6611858542802² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1652964635699 + ... + 1652964635702.

Almost surely, 2^{6611858542802} is an apocalyptic number.

6611858542802 is a deficient number, since it is larger than the sum of its proper divisors (3305929271404).

6611858542802 is a wasteful number, since it uses less digits than its factorization.

6611858542802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305929271403.

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 6611858542802 in words is "six trillion, six hundred eleven billion, eight hundred fifty-eight million, five hundred forty-two thousand, eight hundred two".