155616106 has 4 divisors (see below), whose sum is σ = 233424162. Its totient is φ = 77808052.

The previous prime is 155616101. The next prime is 155616121. The reversal of 155616106 is 601616551.

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., 147258225 + 8357881 = 12135^2 + 2891^2 .

It is not an unprimeable number, because it can be changed into a prime (155616101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38904025 + ... + 38904028.

Almost surely, 2^155616106 is an apocalyptic number.

155616106 is a deficient number, since it is larger than the sum of its proper divisors (77808056).

155616106 is an equidigital number, since it uses as much as digits as its factorization.

155616106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77808055.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 155616106 is about 12474.6184711197. The cubic root of 155616106 is about 537.8793209238.

The spelling of 155616106 in words is "one hundred fifty-five million, six hundred sixteen thousand, one hundred six".