61551662 has 16 divisors (see below), whose sum is σ = 100034352. Its totient is φ = 28291200.

The previous prime is 61551661. The next prime is 61551673. The reversal of 61551662 is 26615516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61551661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19589 + ... + 22512.

It is an arithmetic number, because the mean of its divisors is an integer number (6252147).

Almost surely, 2^61551662 is an apocalyptic number.

61551662 is a deficient number, since it is larger than the sum of its proper divisors (38482690).

61551662 is a wasteful number, since it uses less digits than its factorization.

61551662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42163.

The product of its digits is 10800, while the sum is 32.

The square root of 61551662 is about 7845.4867280494. The cubic root of 61551662 is about 394.8328342479.

The spelling of 61551662 in words is "sixty-one million, five hundred fifty-one thousand, six hundred sixty-two".