2206657151572 has 6 divisors (see below), whose sum is σ = 3861650015258. Its totient is φ = 1103328575784.

The previous prime is 2206657151551. The next prime is 2206657151579. The reversal of 2206657151572 is 2751517566022.

It can be written as a sum of positive squares in only one way, i.e., 2164764886596 + 41892264976 = 1471314^2 + 204676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206657151579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275832143943 + ... + 275832143950.

Almost surely, 2^{2206657151572} is an apocalyptic number.

It is an amenable number.

2206657151572 is a deficient number, since it is larger than the sum of its proper divisors (1654992863686).

2206657151572 is a wasteful number, since it uses less digits than its factorization.

2206657151572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551664287897 (or 551664287895 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 2206657151572 in words is "two trillion, two hundred six billion, six hundred fifty-seven million, one hundred fifty-one thousand, five hundred seventy-two".