61105551006 has 16 divisors (see below), whose sum is σ = 122220000000. Its totient is φ = 20367034008.

The previous prime is 61105550971. The next prime is 61105551049. The reversal of 61105551006 is 60015550116.

It is a super-2 number, since 2×61105551006² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279756 + ... + 447743.

It is an arithmetic number, because the mean of its divisors is an integer number (7638750000).

Almost surely, 2^61105551006 is an apocalyptic number.

61105551006 is an abundant number, since it is smaller than the sum of its proper divisors (61114448994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61105551006 is a wasteful number, since it uses less digits than its factorization.

61105551006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741503.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 61105551006 in words is "sixty-one billion, one hundred five million, five hundred fifty-one thousand, six".